What is ascending and descending order?
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What are the notations used in Evaluation of Arithmetic Expressions using prefix and postfix forms?
Explain heapsort. What is its complexity?
What is a postfix expression?
Differentiate between hashset and hashmap.
What is default array size?
Does hashmap allow null keys?
Can you declare an array without assigning the size of an array?
Describe queue operation.
What are the tasks performed during preorder traversal?
Explain in brief a linked list.
Why merge sort is better than insertion sort?
Is null allowed in list?